Entropic, I once again missed your response to me at the end of the accountability thread where you asked me about warming up before lifting.
Honestly, you can do so many things just to get your body moving. Maybe 15 minutes of cycling, or light jogging would work for you. I personally like to get in some dynamic stretching (I save static stretching for after workouts). I have two routines I do, one for a leg day, and one for an arm day. So for example, on leg days I do walking knee raises, walking high kicks, walking quad stretch, box jumps, and box step-ups before I get to lifting.
Now, my gym also has a nice big room for stretching. If you don't have a ton of space, maybe try jumping jacks or jumping rope to warm up.
I hope this helps! Maybe others can jump in with how they like to warm up before lifting?